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#define FALSE 0
#define TRUE 1
/* Default device for output */
#define AUDIONAME "/dev/dsp"
#define ZCAT "/usr/bin/zcat"
/* Playback frequency in Hertz:
*
* 386SX -> 8000 (or 4000)
* 386/25 -> 12000
* 486/50 -> 23000
*/
#define DEFAULT_DSP_SPEED 44100
#define DSP_DEFAULT_STEREO TRUE
/* The default sample size can be 8 or 16 bits/sample */
#define DSP_DEFAULT_SAMPLESIZE 8
typedef struct
{ /*************************************/
char *info; /* Sample data as a series of bytes */
unsigned int length; /* Length of sample in bytes */
int volume; /* Default volume 0-64 (min-max) */
unsigned int rep_start; /* Byte offset of repeat start */
unsigned int rep_end; /* Byte offset of repeat end */
}
Voice; /*************************************/
typedef struct
{ /*************************************/
int period[64][4]; /* Period (pitch) of note */
char sample[64][4]; /* Sample number to use */
char effect[64][4]; /* Effect number (command) */
unsigned char params[64][4]; /* Effect parameters */
}
Pattern; /*************************************/
typedef struct
{ /*************************************/
unsigned int pointer; /* Current position in sample */
unsigned int step; /* Sample offset increment */
int samp; /* Number of sample currently used */
int pitch; /* Current pitch */
int volume; /* Volume of current note (0-64) */
int doarp; /* TRUE if doing arpeggio */
int arp[3]; /* The three notes in the arpeggio */
int doslide; /* TRUE if doing slide */
int slide; /* Slide speed and direction */
int doporta; /* TRUE if doing portamento */
int pitchgoal; /* Pitch to reach */
int portarate; /* Rate at which to approach pitch */
int dovib; /* TRUE if doing vibrato */
int vibspeed; /* Speed of vibrato 0-15 << 2 */
int vibamp; /* Amplitude 0-15 */
int viboffs; /* Current offset in sine wave */
int doslidevol; /* TRUE if doing volume slide */
int volslide; /* Slide speed 0-64 */
}
Channel; /*************************************/
#define MIN(a, b) ((a) < (b) ? (a) : (b))
#define MAX(a, b) ((a) > (b) ? (a) : (b))
#define ABUF_SIZE abuf_size
#ifndef EXIT_SUCCESS
#define EXIT_SUCCESS 0
#endif
#ifndef EXIT_FAILURE
#define EXIT_FAILURE 1
#endif
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